Mysteries of the Pyramds

"A striking characteristic of the pyramids and Sphinx of Giza is the way in which they are integrated into a grand architectural plan, based on mathematical and astronomical data. There is no evidence that the pyramids were used as tombs. What is certain is that two narrow shafts emanating from inside the Great Pyramid were directed to two specific stars: Zeta Orionis, one of the three stars in Orion's belt, and Sirius, in the constellation of Canis Major. It is certain, too, that the principal Giza monuments form an accurate terrestrial 'map' of the three stars of Orion's belt as these constellations appeared in 10,500 BC. (see below) Who could have been observing the skies over Giza in 10,500 BC and who, at that date, could have had the technical capacity to realize such monumental works as the Sphinx and the pyramids? Egyptologists assert there was no civilization on Earth at that time, let alone one capable of planning and building such immense, well engineered structures. If they are right, why do the alignments of Giza so plainly and repetitively mirror the skies of the 11th millennium BC."